Henry Moseley (1887-1915) http://www.sciencephoto.com/image/226896/530wm/H4130034-Portrait_of_Henry_Moseley-SPL.jpg "We find that an X ray bulb with a platinum target gives out a sharp line spectrum of five wavelengths which the crystal separates out as if it were a diffraction grating. In this way one can get pure monochromatic X rays. Tomorrow we search for the spectra of other elements. There is here a whole new branch of spectroscopy, which is sure to tell one much about the nature of an atom." ~ Henry Moseley
About Henry Moseley: Henry Moseley was born into a high achieving English family on November 23, 1887. With his mother, a decedent from a biologist and his father a biologist himself as well as a professor at Oxford, it's no wonder Moseley's initial interest was zoology. He was able to study this field at Eton after receiving a scholarship. After he completed that education, he worked his way through Trinity College achieving in math and science eventually earning himself a job at the University of Manchester working under the scientist Rutherford. Moseley's Research: At Eton, the physics teacher was the first to show Moseley about x rays. When he was studying with Rutherford he used the x ray spectra to find out information about atoms. He measured the wavelengths of emissions from the different elements. When he compared ordering of the wavelengths with the atomic number he noticed to two sets of information corresponded with each other.
Moseley and X-ray spectra research
The Results of Moseley's Work: Because of the coinciding patterns that Moseley found in the two sets of data, he was able to edit Mendeleev's periodic table so it was more accurate. Instead of organizing the table according to atomic mass, he rearranged it so it was ordered by atomic number. Because of this, many mysteries of the order of elements were solved; elements like iodinecould finally be placed in the correct spot. Moseley was also able to predict the positions of elements not yet known.The periodic table that Moseley created based on atomic number is the basis of the modern periodic table seen today.
After Moseley's Discovery: Before he could further his studies of science, he chose to fight in the British Army during World War I. But while fighting in Turkey, on August 10, 1915 Moseley was killed during the Battle of Gallipoli. Many said it was an unfortunate end to his life and that if he had continued with his scientific research then he would've won aNobel Peace Prize. Although he never achieved that prestigious award, due to his success in rearranging the periodic table, he will always be remembered in thescientific world.
http://www.wereldoorlog1418.nl/uitvinders/index.html "You see actually the Rutherford work [the concept of the nuclear atom] was not taken seriously. We cannot understand today, but it was not taken seriously at all. There was no mention of it any place. The great change came from Moseley." ~Neils Bohr
"one of the greatest advances yet made in natural philosophy"~de Broglie Timeline: 1887- Moseley was born 1913- Moseley communicates his findings 1910- Moseley began working at the University of Manchester 1914- stopped working at Manchester and joined the British Army 1915- Moseley was shot dead More Information About the Scientists that Contributed to the Atomic Theory Work Cited:
"Henry Moseley." SCCS - Swarthmore College Computer Society. N.p., n.d. Web. 13 Nov. 2011.
<http: www.sccs.swarthmore.edu/users/08/ajb/tmve/wiki100k/docs/Henry_Moseley.html>.
"Henry Moseley - Biography, Facts and Pictures." Famous Scientists - List and Biographies of Most Famous Scientists and Inventors in History. N.p., n.d. Web. 13 Nov. 2011. <http://www.famousscientists.org/henry-moseley/>.
http://www.sciencephoto.com/image/226896/530wm/H4130034-Portrait_of_Henry_Moseley-SPL.jpg
"We find that an X ray bulb with a platinum target gives out a sharp line spectrum of five wavelengths which the crystal separates
out as if it were a diffraction grating. In this way one can get pure monochromatic X rays.
Tomorrow we search for the spectra of other elements. There is here a whole new branch of spectroscopy,
which is sure to tell one much about the nature of an atom." ~ Henry Moseley
About Henry Moseley:
Henry Moseley was born into a high achieving English family on November 23, 1887. With his mother, a decedent from a biologist and his father a biologist himself as well as a professor at Oxford, it's no wonder Moseley's initial interest was zoology. He was able to study this field at Eton after receiving a scholarship. After he completed that education, he worked his way through Trinity College achieving in math and science eventually earning himself a job at the University of Manchester working under the scientist Rutherford.
Moseley's Research:
At Eton, the physics teacher was the first to show Moseley about x rays. When he was studying with Rutherford he used the x ray spectra to find out information about atoms. He measured the wavelengths of emissions from the different elements. When he compared ordering of the wavelengths with the atomic number he noticed to two sets of information corresponded with each other.
The Results of Moseley's Work:
Because of the coinciding patterns that Moseley found in the two sets of data, he was able to edit Mendeleev's
periodic table so it was more accurate. Instead of organizing the table according to atomic mass, he rearranged
it so it was ordered by atomic number. Because of this, many mysteries of the order of elements were solved; elements
like iodine could finally be placed in the correct spot. Moseley was also able to predict the positions of elements not yet
known. The periodic table that Moseley created based on atomic number is the basis of the modern periodic table seen
today.
http://www4.nau.edu/microanalysis/Microprobe-SEM/History.html
http://library.thinkquest.org/12909/main2.html
After Moseley's Discovery:
Before he could further his studies of science, he chose to fight in the British Army during World War I.
But while fighting in Turkey, on August 10, 1915 Moseley was killed during the Battle of Gallipoli.
Many said it was an unfortunate end to his life and that if he had continued with his scientific research then he
would've won a Nobel Peace Prize. Although he never achieved that prestigious award, due to his success in rearranging the
periodic table, he will always be remembered in the scientific world.
http://www.wereldoorlog1418.nl/uitvinders/index.html
"You see actually the Rutherford work [the concept of the nuclear atom] was not taken seriously. We cannot understand today, but it was not taken seriously at all. There was no mention of it any place. The great change came from Moseley." ~Neils Bohr
"one of the greatest advances yet made in natural philosophy"~de Broglie
Timeline: 1887- Moseley was born 1913- Moseley communicates his findings 1910- Moseley began working at the University of Manchester 1914- stopped working at Manchester and joined the British Army 1915- Moseley was shot dead
More Information About the Scientists that Contributed to the Atomic Theory
Work Cited:
"Henry Moseley." SCCS - Swarthmore College Computer Society. N.p., n.d. Web. 13 Nov. 2011.
<http: www.sccs.swarthmore.edu/users/08/ajb/tmve/wiki100k/docs/Henry_Moseley.html>.
"Henry Moseley." Chemistry and New Zealand. N.p., n.d. Web. 13 Nov. 2011. <http://www.chemistry.co.nz/henry_moseley.htm>
"Henry Moseley - Biography, Facts and Pictures." Famous Scientists - List and Biographies of Most Famous Scientists and Inventors in History. N.p., n.d. Web. 13 Nov.
2011. <http://www.famousscientists.org/henry-moseley/>.
"Henry Moseley - Chemistry Encyclopedia - structure, elements, number, atom." Chemistry: Foundations and Applications. N.p., n.d. Web. 13 Nov. 2011.
<http://www.chemistryexplained.com/Ma-Na/Moseley-Henry.html>
"Henry Moseley X-Ray Imaging Facility - Henry G J Moseley (School of Materials - The University of Manchester)." The School of Materials (The University of Manchester). N.p., n.d. Web. 15 Nov. 2011. <http://www.materials.manchester.ac.uk/research/facilities/moseley/biography/
"Moseley's Periodic Table." Corrosion science and engineering information hub. N.p., n.d. Web. 13 Nov. 2011. <http://corrosion-doctors.org/Periodic/Periodic
Moseley.htm>.
scientists, inventors, and more.. "Henry Gwyn-Jeffreys Moseley Quotes - 3 Science Quotes - Dictionary of Science Quotations and Scientist Quotes." Today In Science History//. N.p., n.d. Web. 15 Nov. 2011. <http://www.todayinsci.com/M/Moseley_Henry/MoseleyHenry-Quotations.htm>.